2010. National Atlas of the United States, Environmental Systems Research Institute (Redlands, Calif.), and Geological Survey (U.S.). This point shapefile represents airports in the United States, Puerto Rico, and U.S. Virgin Islands with airport passenger enplanements of 25 passe... Environmental Systems Research Institute (Redlands, Calif.).

1972. National Atlas of the United States, Environmental Systems Research Institute (Redlands, Calif.), and Geological Survey (U.S.). This point shapefile represents cities and towns in the United States at 1:2,000,000 scale. This layer is part of the 2014 ESRI Data and Maps colle... Environmental Systems Research Institute (Redlands, Calif.).